AP (Advanced Placement) Physics(B-C): Questions 792 - 795 of 921

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Question number: 792

» Work, Energy and Power

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Question

The gravitational potential energy of a system of two objects of masses separated by distance , is equal to . In second system of two objects of masses , are separated by distance . What is the potential energy of the second system?

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Question does not provide sufficient data or is vague

Question number: 793

» Thermodynamics

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A window is made of a material with a thermal conductivity of and has the dimensions thick. The temperature at one side is , and the other side temperature is . Determine the rate of heat transfer through the window.

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All of the above

Question number: 794

» Atomic & Nuclear Physics

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The threshold frequency for the ejection of photoelectrons from a metal is . What is the kinetic energy of photoelectrons ejected by the light of frequency ?

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None of the above

Question number: 795

» Electric Circuits

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Two capacitors of capacitances and are connected in series. The equivalent capacitance of them is . When these two capacitors are connected in parallel, then the equivalent capacitance of them is . What is the ratio is?

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All of the above

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